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Solar Cell

Science

New thin film increases efficiency of stacked solar cells

Researchers at North Carolina State University have developed a new system for strengthening the connections between stacked solar cells which could improve the overall efficiency of concentrated photovoltaic technology and reduce the cost of solar energy production. The hardened connections could theoretically enable these cells to operate at concentrations of up to 70,000 suns while minimizing wasted energy.Read More

Automotive

Volvo portable solar pavilion could power plug-ins of the future

"How am I going to prevent that battery from dying on my trip?" It's a sentiment that's been echoed again and again, even by the most ardent EV early adopters, and certainly by the auto consuming public at large. With only 100 miles (161 km) of battery power on a good day, and few charging stations along most routes, the fear of sputtering out on the highway is real and pervasive. With help from a collaborative of designers and architects, Volvo shows one possible solution – a collapsible, carport-sized solar charging pavilion named Pure Tension. Read More

Electronics

Making solar cells with a kitchen microwave

For most people, experiments involving a home microwave typically don't go much further than inflating a marshmallow like a balloon or reheating leftovers in plasticware – both with messy results. For metallurgists though, microwaves are sometimes employed to efficiently process metals, which is how researchers at the University of Utah found themselves using a secondhand kitchen appliance in their lab. Their resourcefulness paid off recently, when the team discovered a method for creating solar cell material with just a few basic ingredients and an old microwave.Read More

Environment

Making the most of low-grade silicon for cheaper, more efficient solar panels

While we wait for affordable multi-junction solar cells that are pushing past the 40 percent conversion efficiency mark to make it out of the lab and onto our roofs, we have to make do with standard commercial silicon cells that currently max out at around 19 percent. A team from the University of New South Wales in Australia has found a way to improve the quality of low-grade silicon, enabling higher efficiency solar cells to be produced from cheaper, low-grade silicon.Read More

Environment

Spectrolab claims record efficiency for new solar cell

Spectrolab, a Boeing subsidiary known for the manufacture of solar cells for satellites and spacecraft, has in recent years turned its attention to terrestrial solar cells to tap into the expanding alternative energy market. Now the California-based company has claimed a new solar cell efficiency record of 37.8 percent for a ground-based multi-junction cell without solar concentration. Read More

Environment

Recyclable solar cells created using trees

Researchers at Georgia Institute of Technology and Purdue University have developed new solar cells based on natural substances derived from plants, including trees. The organic solar cells have an efficiency of 2.7 percent – a new high for cells on substrates derived from renewable raw materials – and can be easily recycled. Read More

Solar-powered Volta Racer is flexible about finding sunlight

If you want to teach children about hydrogen power, you can always buy them a fuel cell-powered toy car like the H-ROVER. Should you wish to show them the merits of solar power, there are also quite a number of solar panel-equipped cars from which to choose. ToyLabs’ new Volta Racer, however, is reportedly the first toy car to feature a flexible polycrystalline silicon solar panel. Read More

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